| 摘要 |
<p>A CRT video display includes a horizontal oscillator for producing a variable rate horizontal scan control signal in response to different resolution modes of operation. A horizontal output signal is produced in response to the variable rate horizontal scan control signal and a B+ voltage. The pulse amplitude of the horizontal output signal is maintained constant in response to changes in the rate of the horizontal scan control signal by appropriately adjusting the B+ voltage, whereby the high voltage and horizontal raster size of the display are maintained constant despite variations in the horizontal scan control signal which accommodate different resolution modes of operation.</p> |
